12U85 | OD FAN POWER CIRCUIT 2 | Lennox

OD Fan Power Circuit 2 from Lennox The OD Fan Power Circuit 2 is a replacement part for Lennox furnaces. It is a circuit board that controls the operation of the furnace's OD fan. The OD fan is responsible for circulating air through the furnace and helping to keep the furnace operating at a safe temperature. The OD Fan Power Circuit 2 is made of high-quality materials and is designed to last for many years. It is easy to install and can be replaced in a matter of minutes. If you are experiencing problems with your furnace's OD fan, replacing the OD Fan Power Circuit 2 may be the solution. This part is available at our HVAC supply store for the best prices and fast shipping!